--- a/xpcom/ds/TimeStamp.h
+++ b/xpcom/ds/TimeStamp.h
@@ -382,16 +382,24 @@ class TimeStamp
 {
 public:
   /**
    * Initialize to the "null" moment
    */
   MOZ_CONSTEXPR TimeStamp() : mValue(0) {}
   // Default copy-constructor and assignment are OK
 
+#ifdef MOZ_WIDGET_GONK
+  TimeStamp(int64_t aAndroidTime) : mValue(aAndroidTime)
+  {
+    static_assert(sizeof(aAndroidTime) == sizeof(TimeStampValue),
+                  "Android timestamp should be same units as TimeStampValue");
+  }
+#endif
+
   /**
    * Return true if this is the "null" moment
    */
   bool IsNull() const { return mValue == 0; }
 
   /**
    * Return a timestamp reflecting the current elapsed system time. This
    * is monotonically increasing (i.e., does not decrease) over the